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The Brain

How the brain works. Focusing how the brain processes spoken language

Azucena Espinoza

on 24 October 2012

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Transcript of The Brain

The Brain Frontal Lobe The brain is divided into left and right hemispheres, these hemispheres are separated into regions, these regions are called LOBES Frontal Lobe Parietal Lobe Temporal Lobe Occipital Lobe Is positioned in the front most region of the cerebral cortex It makes the following possible: Movement Decision Making Problem Solving Planning Judgment Impulse Control Memory Located behind the Frontal Lobe Parietal Lobe Process senses like: Touch Pain Taste Pressure Temperature The Parietal Lobe also has a role in language functions Parts of Speech Temporal Lobe Found on either side of the brain, just above the ears Responsible for: Hearing Memory Meaning Language They also play a role in emotion and learning, but their main function is to interpret and to process auditory stimuli Occipital Lobe Found in the back of the brain Responsible for the brain's ability to recognize objects It is also responsible for our vision So, WHAT DOES THE BRAIN HAVE TO DO WITH SPEECH and LANGUAGE? WRITE DOWN STEP ZOOM OUT, EDIT PATH AND WRITE MORE THINGS MAYBE INCLUDE A GOOD PICTURE It started in 1861, french neurosurgeon named Paul Broca identified the parts of the brain that are involved in language when he examined a brain of a deceased patient. He found a sizable lesion in the left inferior frontal cortex. This led him to make his famous statement that “we speak with the left hemisphere” and to identify, for the first time, the existence of a “language centre” in the posterior portion of the frontal lobe of this hemisphere. This is now known as Broca's Area HISTORY PROCESS 10 years later, a German neurologist named Carl Wernicke discovered a part of the brain that is involved in understanding language. This area is in the back part of the left temporal lobe. Here's a test... we will explain later:) How does the brain process information we hear and learn? when you hear a word spoken, it goes through the ear, and from the ear it goes to the auditory cortex (upper part of temporal lobe) the signal is then sent to the Wernicke's area where it associates structure of the signal and finds a representation of a word stored in your memory Sensory Memory - Is the first type of memory that the brain uses to remember things Later it decides whether or not the information is important and depending on that, decides to send it to the short term memory or long term memory banks * Short- Term Memory * Long-Term Memory Declarative Memory Procedural Memory In contrast, when you read a word out loud, the information is perceived first by your visual cortex, which then transfers it to the angular gyrus, from which it is sent on to Wernicke’s area. 1. when someone reads a word, it reaches the brain via the eyes (Primary Visual Cortex) rather than the ears. 3. perceived as a graphic pattern, it moves from the the visual cortex to the Angular Gyrus where the spelling of the word is deciphered 2. The information is then passed on to the Wernicke's Area where it is recognized as a word associated with its corresponding auditory form 4. From there it travels to Broca's area which adds a syntactic structure and an articulation plan. This rich, complex information is then transferred to the motor cortex, which makes the neurons on the mortor cortex send signals to the muscles of the mouthand lyranx that produce the spoken word RECAP!!!! (sort of) THANK YOU!! QUESTIONS??? COMMENTS? BY: Azucena Espinoza Anitda Praseutsinh Ruby Vigo Amelia Navarro Links: http://thebrain.mcgill.ca/flash/i/i_10/i_10_cr/i_10_cr_lan/i_10_cr_lan.html#2 http://thebrain.mcgill.ca/flash/d/d_10/d_10_cr/d_10_cr_lan/d_10_cr_lan.html Language Disorder A problem with any function of language & communication It is extremely common
vary from stuttering sound substitution and ability of learning Broca's Aphasia Aphasia- Language disorder associated with brain lesions Symptoms Fluency
Word Finding
Producing and comprehending sentences orally and in writing Causes Stroke Gunshot wounds Brain Tumor Other Traumatic Brain Injuries and damages About the Lesion Surrounds the frontal cortex Underlies white matter Insula Basal Garglia Parts of the anterior superior temporal gyrus The Neural Loop Involves understanding and producing spoken language
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